Pressure regulator



FIG. 1 is a top right perspective view of the pressure regulator;

FIG. 2 is a top left perspective view of the pressure regulator of FIG. 1;

FIG. 3 a front view of the pressure regulator, the rear view being symmetrical;

FIG. 4 is a top view of the pressure regulator;

FIG. 5 is a bottom view of the pressure regulator;

FIG. 6 a left side view of the pressure regulator; and,

FIG. 7 a right side view of the pressure regulator.

The broken lines shown in the figures are for the purpose of illustrating portions of the pressure regulator and form no part of the claimed design. 

CLAIM The ornamental design for a pressure regulator, as shown and described. 